Culinary beater.



M. H. ROBERTS.

CULINARY BEATER.

APPLICATION FILED JULY 18. m1.

Patented Dec. 31, 1918.

MAURICE H. ROBERTS, OF BOSTON, MASSACHUSETTS.

v CULINARY BEATER.

Specification of Letters Patent. Patented Dec, 31, 1918,

Application filed July 18, 1917. Serial No. 181,399.

. an in drawin is a s ecification like v Fig. 2, of Fig. 1.

characters on the drawing representing like parts. I

This invention relates to culinary beaters and mixers and the like, moreparticularly it relates to hand operated heaters for beating eggs,frosting. confectioneriesand the like. In order to illustrate myinvention I have 7 shown in the accompanying drawing one embodimentthereof; wherein; Figure 1, is an elevation of a beater embodying myinvention." I

is a horizontal section on line 2- 2 Fig. 3, is a horizontal section Online 3-3 of Fig. 1. 7

And Fig. 4, is a modification hereinafter described. The terms employedherein are used in the generic and descriptive sense and therefore arenot intended primarily as terms of limitation.

In the drawing 20 represents a base of any suitable or preferred type orform best adapted for a contact member to engage the interior bottom ofany desired vessel or container utilized to hold the article to be mixedor beaten.

Pivots 21 and 22 are located at diametrically opposite positions uponthe said base 20 and swiveled thereon are the beater members 23 and 24respectively. I

The said beater members 23 and 24 are preferably circular orcircumferential in form both of the same size or of the same diameterand with their axesat all times in a plane transverse one to the otherwhether in rotation or stationary bythe means provided hereinafter. saidbeater members in any suitable manner at the top thereof are relativelythin, fiat, spiral or twisted members 27 and 28 respectively eachadapted to extend flatwise through the slots 29 and 30 through thereciprocatory bar 32 secured to or integral with the reciprocating rod33 at right angles thereto.

The upper ends of said members 27 and 28 Integral or secured to.

are pivoted or rotatable at 35 and 36 respectively in holes in the guidebar or brace 38 which has a centrally located slot 39 through which thereciprocating rod-33 is vertically slidable. Therefore, while thereciprocating bar 32 is slidable axially of the members 27 and 28 thebar or brace 38 is stationary thereto but allows of pivotal ,movement ofthe said members 27 and 28.

The reciprocating rod 33. is provided at the top thereof with a suitablehandle ll and interposed between which and the bar or brace 38 is a longspiral spring 42 encircling the said reciprocating rod. Interposedbetween the bars 32 and 38 is asimilar but shorter spiral spring orbuffer spring 43 normally adapted to imit the; upward movement of thehandle 41' and the reciprocating rod 33 under the action of the spring42. T

Other suitable means than the bar 32 may be employed slidablelongitudinally upon the members 27 and 28 to rotate them. For

example, referring to Fig. 4, I illustrate a handle or grip 48 providedwith a couple of channels orcounterbore's each provided with a spring 50to engage the stationary Washers .swiveled on the ends of the members 27and 28 normally to force them out of said counterbore. Suitable slottedferrules or' the like are provided toembrace the said members 27 and 28tocau'se them to rotate in the same manner asdoes the bar 32.

Theapplication and'operation of my in vention is as follows:

The article or'substanceto be mixed or beaten is placed as usual in theaforesaid container or vessel. The operator then grasps either thehandle 41 or the handle 48 as the case may be-and brings the base 20into contact with the interior bottom in the said vessel. Then by arapid down movementof the handle 41 the reciprocating rod 33 is moveddownward carrying with it the reciprocatory bar 32 causing the saidmembers 27 and 28 to move through the slots 29 and 30 and as the saidmembers 27 and 28 are spiral or twisted they will rotate. The directionof the spiral of the member 27 is opposite that of member 28 so that thebeater portions 23 and 24 will rotate in opposite directions during thesaid downward movement of the bar 32; Thus the beater 23 is adaptednormally to pass within the circumferential or peripheral plane of thebeater 24.- when the latter is entering and leaving the plane transverseto the former.-

As continued rotationis had the relativevpor sitions of the said beaters23 and 24 Will change constantly but the axes thereof Will always betransverse one to the other.

Eventually or during the next half revolution the beater 24 Will passWithin the circumferential or perpendicular plane of the beater 28. Inthis manner each beater Will alternately pass the other beater as theaxis of one or the other crosses the opposite one in the plane'ofrotation- -When'the extreme downward movement of the handle 41 is eachbeater will rotate in its own direction for two or three turns dependentupon the length andpitch of the spiral members '27 and -28 after Whichthey will then reverse their direction each assuming a difierentdirection of rotation. to that previously had. By placing the heaters23"and 24 close to gether and prov dmg'each .With a spiral in thereverse direction. to rotate them in rev verse directions the edgesthereof Willhave pass Within the outlines of the opposite beaterand'a-lso each rotate in the opposite direction," and quicker-land morecomplete mixing orbeating 1S obtained-than W-ith'de' vices heretoforeknown. 1

(The construction of the heater is relatively simple and every part isopen to inspection and cleansing. With regard'to'the modificationillustrated by Fig. 4, the operav tionthereof is similar to thatshown byFig.

1. That is the rapid reciprocation of the member: 48 Which'causes theheaters 23 and 24 to 'rotate'in the same manner until the handle comesto rest, after which the springs 50 Will return the said handle to itsoriginal 1 position'again causing said heaters to rotate but in thereverse direction.

I have described herein one embodiment or mytinventi o'n, but it is tobe understood that'the latter is not essentially limited to. the

Gggiel of this patent may-1:9 obtained for "the" a tion. ofsaid.embodiment,since the same may bevaried Without departing from theproper scope of the claims. r Claims? V 1 In an article of the characterdescribed, a plurality of beater members each pivoted adjacent to theother upon a stationary base with their planes of rotation intersectingand provided with oppositely directed spiral portions, and areciprocatory handleguiding means cooperating with said spirals torotate said members in opposite directions. a 2. In an article ofthe'character described, a plurality of beater members each pivotedadjacent to theother upon a stationary, base with their planes ofrotation interse'cting and provided With oppositely direct'ed spiralportion's,f a .rieciprocatory' handle guiding means cooperating Withsaid spirals to rotate said members "in opposite directions, andresilient means adapted to restore said handle into A In an article of,the character described,

position to reverse the rotation a plurality of heater ineinberseachpivoted adjacent to the other upon a stationary vvith 'i thir planesof rotationinters'ecting and provided with oppositelyfdireicted spiralportions extending "therefrom and pivoted i ota on in a u dinab ace a ba el adding pivots-penalised the said spirals a d ada e t u d a han l man a I ci'p'rocatory handle means passing through said ace am; havin one nd t r o means eiigaging said "spiral portions'lto rotate the same in,0 posite directions, andf re s1 at mean tefr tersa dlha si .Z th ma pe'i l en te re erse th were 6f said spiral portions.

In an ticle. Qft e eh ect r s rib Ia P wl' ty 'eea ee res hipive d ca s"t ei th are! a 'te idn i fha e it the r Pla ts 9 r a i .mt ieetln' ndaqhr orid w h e re ly st d spiral portions extending therefromteacoperate With pivotal and bracing means a distance fronrsaid members,pivotal bracing means for said spiral portionsand recipr'o} eating meansengaging said spiral portions between the pointofpivota'l l and bracingm an fo a jua in s d sp ra Deniers .111 te tim ny wh e f, I h v slge dmy name'to this'specification.

rive cents each, by addressingthe qpmmist i oiier ot a'atentgg m ns ear-

